Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/149156
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hovinen, Johanna E.H. | - |
dc.contributor.author | Tarroux, Arnaud | - |
dc.contributor.author | Ramírez Benítez, Francisco José | - |
dc.contributor.author | González Forero, Manuela | - |
dc.contributor.author | Descamps, Sébastien | - |
dc.date.accessioned | 2020-01-31T14:00:20Z | - |
dc.date.available | 2024-03-21T06:10:07Z | - |
dc.date.issued | 2019-03-21 | - |
dc.identifier.issn | 0171-8630 | - |
dc.identifier.uri | http://hdl.handle.net/2445/149156 | - |
dc.description.abstract | Predators such as seabirds are often used as bio-indicators of the marine environment. This is based on the assumption that changes in seabird populations are driven by changes in their prey. We tested this assumption in a High Arctic seabird community by assessing the relationships between the diet, body condition, and breeding performance of 4 ecologically different species: the little auk Alle alle, black-legged kittiwake Rissa tridactyla, Brünnich's guillemot Uria lomvia, and glaucous gull Larus hyperboreus, breeding in Svalbard, Norway. Interannual changes in seabird diet (2009-2015) were assessed by estimating their carbon and nitrogen isotopic ratios (δ15N and δ13C) during the breeding and non-breeding seasons (i.e. using blood and feather tissues). We found interannual variation in the isotopic ratios during both seasons in all 4 species. These variations differed among species, thus suggesting dietary changes, instead of changes in isotopic baselines, as the most plausible mechanism underlying such patterns. We also found that seabirds had a lower average hatching success when the average δ15N during the previous non-breeding season was higher. Our results suggest that changes in the average prey composition during the non-breeding season may partially explain changes in breeding performance of Svalbard seabirds. | - |
dc.format.extent | 13 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Inter-Research | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.3354/meps12886 | - |
dc.relation.ispartof | Marine Ecology Progress Series, 2019, vol. 613, p. 183-195 | - |
dc.relation.uri | https://doi.org/10.3354/meps12886 | - |
dc.rights | (c) Inter-Research, 2019 | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Ocells marins | - |
dc.subject.classification | Nutrició animal | - |
dc.subject.classification | Àrtic, Oceà | - |
dc.subject.other | Sea birds | - |
dc.subject.other | Animal nutrition | - |
dc.subject.other | Arctic Ocean | - |
dc.title | Relationships between isotopic ratios, body condition and breeding success in a High Arctic seabird community | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 694617 | - |
dc.date.updated | 2020-01-31T14:00:20Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
694617.pdf | 1.33 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.